Water Cycle
Chattanooga Watersheds
Stream Orders
NPDES
CWA
100
evaporation off of a living plant
What is transpiration
100
Movement of water across a landscape
What is drainage
100
1st order stream
What is a stream that no other streams flow into
100
The acronym NPDES stands for
What is National Pollutant Discharge Elimnation System
100
pollution coming from a distinct and identifiable site
What is point-source pollution
200
Overflow of water that cannot be soaked into the soil
What is runoff
200
the geographic land area from which all water drains into a common outlet
What is a watershed
200
Three ways water can enter a stream
What is runoff, ground water, and other streams
200
This part of the NPDES was created to cover all MS4's
What is Phase II
200
pollution that does not come from a directly identifiable source, such as agricultural runoff
What is non-point source pollution
300
10% of water vapor is contributed by
What is transpiration
300
Chattanooga is part of this watershed
What is Lower Tennessee River
300
When two 1st order streams converge
What is a second order stream
300
This section of the NPDES was created in 1990, and covers large population areas
What is Phase I
300
The three aspects of water CWA aims to restore integrity to
What is physical, chemical, and biological
400
under lying limestone through which water flows and erodes the stone in Chattanooga and surrounding areas
What is karst aquifer
400
The high points that separate one watershed from another
What is divides
400
When two or more second order streams converge
What is a third order stream
400
An NPDES permit must be obtained for a construction site if it is this size
What is one acre or larger
400
the area of the CWA that is hardest to regulate
What is non point source pollution
500
These particles act as a catalyst for the process of condensation
What is dust and smoke
500
The Lower Tennessee River watershed is located within
What is Upper Tennessee River basin
500
Account for 80% of the world's waterways
What is headwater streams
500
the four categories of storm water discharges that require an NPDES
What is MS4's, construction, industrial, and sand/gravel
500
where the CWA states it is unlawful to discharge into this from any point source without a permit
What is navigable waters
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